I hate to tread on the toes of a fundamentalist Christian who can't even spell a priori correctly while brandishing it oh so impressively, but you're both wrong.
The myth that Einstein just doodled random numbers on a board till he came up with E=mc2 which lead to the nuclear bomb when he could have just as easily ended up with the collected works of Shakespeare instead is a myth. He decided to come up with E=mc2 and doth proceedeth backwards from it till he got his proof. Hell, his equations lead to no such bomb either, just the notion that if you smashed already atomically unstable material together hard enough in a compressed are, you make one helluva firecracker.
So as in any scientific quest it wasn't a bucket of raw data that randomly congealed over time into a LED lights, but rather Ben Franklin > Kite > > Edison > Light Bulb > Muh Computer > Memes
Now despite lacking the presupposition that the bastardized Romanicized paganized version of the Zoroastranized Hebrewized God is above all the other GodS because he's just so amazingly awesome because, um, something or other and therefore it was he, rather than they, that sat in the dark for an eternity till finally getting bored 8000 years ago as testified by some monk and so took to making a big ball of fire in the sky to see all the glory of Creation with because it looks so much better in Technicolor rather than with night vision goggles - no one invented artificial light by saying God did it because they did say that for hundreds of thousands - if not millions - of years with no light switch to reward them with for their faith to whatever Godly version of themselves they sacrificed babies to.
Shit, forgot where I was going with this, but basically, what's the point of arguing with someone who wishes to pretend he'd rather live the life of a baboon in the Serengeti? If he don't like that new fangled scientificalated mumbo jumbo crapola, the solution is simple: Unplug. That's all, unplug his device, unplug his thermostat, unplug his lamp, and wait for God's great ball of fire to illuminate his troglodyte day.